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Drinking soda daily may harm your fertility

If you are trying to get pregnant, you might want to cut back on soda; a new study has found that it could reduce your chances of conceiving.

New research finds that soda could harm your chances of becoming pregnant.

New research — which has now been published in the journal Epidemiology — finds that drinking one or more sugary drinks each day is linked to reduced fertility, for both men and women.

In the United States, infertility is experienced by around 15 percent of couples, with the annual cost of fertility treatments in the country equaling more than $5 billion.

If modifiable risk factors can be identified, then raising awareness of them may help to
reduce the psychological stress and financial burden experienced by couples who are struggling to conceive.

Examples of modifiable risk factors for infertility might, for instance, include lifestyle factors such as diet.

However, the past half a century has seen a significant rise in the amount of added sugar in the average diet of a U.S. individual. One third of this total sugar intake comes from soda and other sugar-sweetened drinks, which are associated with weight gain and conditions such as type 2 diabetes.

Drinking soda is also tied to early menstruation and poor semen quality — although few studies have investigated the direct effects that soda may have on fertility.

Reduction in monthly chance of conception

To further investigate potential associations between drinking soda and infertility, researchers from Boston University School of Public Health in Massachusetts surveyed 3,828 women — all aged between 21 and 45 — and 1,045 of their male partners.

All of the participants lived in the U.S. or Canada and were a part of the Pregnancy Study Online web-based prospective cohort study.

The team collected data on the participants' medical history, lifestyle factors, and diet. The female subjects also completed follow-up questionnaires every 2 months until they either became pregnant or the 12-month follow-up period came to an end.

Evaluating their data, the researchers revealed that drinking soda was linked with a 20 percent reduction in the average monthly probability of conception for both men and women.

Women who drank at least one soda per day demonstrated a 25 percent lower monthly probability of conception, while men who drank at least one soda per day had a 33 percent lower probability of successfully conceiving with their partner.

Drinking energy drinks was tied to even greater reductions in fertility, but the study authors suggest that this result should be interpreted with caution, as the association was based on results from only a small number of participants.

The researchers did not find a strong association between infertility and drinking fruit juices or diet sodas.

To conceive, 'consider cutting back on sodas'

The authors explain that given the amount of sugary drinks consumed across the U.S., their findings may have important implications for public health.

"We found positive associations," says lead study author Elizabeth Hatch, who is a professor of epidemiology, "between intake of sugar-sweetened beverages and lower fertility, which were consistent after controlling for many other factors, including obesity, caffeine intake, alcohol, smoking, and overall diet quality."

"Couples planning a pregnancy might consider limiting their consumption of these beverages, especially because they are also related to other adverse health effects."

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